Waterproof pressure controller based on multistage sealing

Abstract

The utility model discloses a waterproof pressure controller based on multi-stage sealing, which comprises a pressure controller body, a connecting rod arranged at the bottom of the pressure controller body, a waterproof shell arranged on the outer side of the pressure controller body, a waterproof cover body in threaded connection with the waterproof shell, and a pressure sensor arranged on the pressure controller body. A first sealing ring is arranged between the waterproof shell and the waterproof cover body, the wire is connected with the pressure controller body, extends out of the waterproof cover body and is in sealed connection with the waterproof cover body through the sealing rubber plug, and the sealing bush is connected to the connecting position of the waterproof shell and the connecting rod in a sleeving mode. And a second sealing ring and a third sealing ring are arranged among the sealing bush, the waterproof shell and the connecting rod, so that the waterproof sealing performance of the pressure controller can be improved, the pressure controller can stably operate in a liquid medium, the damage or performance reduction of the pressure controller caused by liquid invasion is avoided, the use safety and reliability of the pressure controller are improved, and the service life of the pressure controller is prolonged. And potential economic loss and safety risk are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of pressure controller technology, specifically relating to a waterproof pressure controller based on multi-stage sealing. Background Technology

[0002] A pressure controller is a device used to automatically regulate and control fluid pressure in a system, ensuring that the pressure is maintained within a preset range. It features stable performance, safety and reliability, convenient installation, and long service life, and is widely used in equipment that requires automatic adjustment of medium pressure and pressure protection systems.

[0003] Existing pressure controllers are not waterproof. When used with liquid media, liquid can seep into the pressure controller, causing damage or performance degradation, and greatly reducing safety and stability. To address this, we propose a waterproof pressure controller based on multi-stage sealing. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof pressure controller based on multi-stage sealing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof pressure controller based on multi-stage sealing, comprising,

[0006] The pressure controller body has a connecting rod at its bottom;

[0007] A waterproof housing is disposed on the outside of the pressure controller body, and the connecting rod passes through the bottom of the waterproof housing;

[0008] A waterproof cover is threaded onto the waterproof housing, and a first sealing ring is provided between the waterproof housing and the waterproof cover;

[0009] A wire is connected to the pressure controller body and extends outside the waterproof cover, and is sealed to the waterproof cover by a sealing plug;

[0010] A sealing bushing is fitted onto the connection between the waterproof housing and the connecting rod, and a second sealing ring and a third sealing ring are provided between the sealing bushing, the waterproof housing, and the connecting rod.

[0011] Preferably, the upper end of the waterproof housing is provided with an internal threaded groove, and the bottom of the waterproof cover is provided with an external threaded ring. The waterproof housing and the waterproof cover are connected by the internal threaded groove and the external threaded ring.

[0012] Preferably, a first sealing groove is provided on the end face of the connection between the waterproof shell and the waterproof cover, and the first sealing ring is disposed in the first sealing groove at the connection between the waterproof shell and the waterproof cover.

[0013] Preferably, the waterproof cover has a through hole, the wire is sealed and passed through the sealing plug, and the sealing plug is sealed and snapped into the through hole.

[0014] Preferably, the bottom of the waterproof housing is provided with a guide port, and the connecting rod extends out of the bottom of the waterproof housing through the guide port.

[0015] Preferably, a second sealing groove is provided at the connection between the sealing bushing and the guide port, and the second sealing ring is disposed in the second sealing groove at the connection between the sealing bushing and the guide port.

[0016] Preferably, a third sealing groove is provided at the connection between the sealing bushing and the connecting rod, and the third sealing ring is disposed in the third sealing groove at the connection between the sealing bushing and the connecting rod.

[0017] Preferably, a transparent observation window is provided on the waterproof cover at the position corresponding to the display screen of the pressure controller body.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model is provided with a waterproof shell, a waterproof cover, a first sealing ring, a sealing plug, a sealing bushing, a second sealing ring, and a third seal. The waterproof shell and the waterproof cover seal the pressure controller body inside, and the first sealing ring, the sealing plug, the sealing bushing, the second sealing ring, and the third sealing ring provide multi-level sealing for the connection between the connecting rod, the waterproof shell, the waterproof cover, and the wires, thereby improving the waterproof sealing performance of the pressure controller. It can operate stably in liquid media and avoid damage or performance degradation of the pressure controller due to liquid intrusion, thereby improving the safety and reliability of the pressure controller and reducing potential economic losses and safety risks.

[0020] 2. This utility model has a transparent observation window on the waterproof cover, which makes it easy for operators to directly observe the status and data display of the pressure controller, thereby enhancing the monitoring capability of the pressure controller. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0022] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 3This is a partial three-dimensional structural schematic diagram of the present invention;

[0024] Figure 4 This is a partial three-dimensional structural schematic diagram of the present invention;

[0025] Figure 5 This is a three-dimensional structural diagram of the waterproof cover of this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the waterproof cover of this utility model;

[0027] Figure 7 This is a three-dimensional structural diagram of the sealing plug of this utility model;

[0028] Figure 8 This is a three-dimensional structural diagram of the sealing bushing of this utility model.

[0029] In the diagram: 1. Pressure controller body; 2. Connecting rod; 3. Waterproof housing; 301. Internal threaded groove; 302. Guide port; 4. Waterproof cover; 401. External threaded ring; 402. Through hole; 5. First sealing ring; 6. Wire; 7. Sealing plug; 8. Sealing bushing; 9. Second sealing ring; 10. Third sealing ring; 11. First sealing groove; 12. Second sealing groove; 13. Third sealing groove; 14. Transparent observation window. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figures 1-8 The waterproof pressure controller based on multi-stage sealing provided by this utility model includes,

[0032] Pressure controller body 1, with a connecting rod 2 at the bottom;

[0033] Waterproof housing 3 is located on the outside of pressure controller body 1, and connecting rod 2 passes through the bottom of waterproof housing 3;

[0034] A waterproof cover 4 is threadedly connected to a waterproof housing 3. The upper end of the waterproof housing 3 is provided with an internal thread groove 301, and the bottom of the waterproof cover 4 is provided with an external thread ring 401. The waterproof housing 3 and the waterproof cover 4 are threadedly connected by the internal thread groove 301 and the external thread ring 401. A first sealing ring 5 is provided between the waterproof housing 3 and the waterproof cover 4. A first sealing groove 11 is provided on the end face of the connection between the waterproof housing 3 and the waterproof cover 4. The first sealing ring 5 is provided in the first sealing groove 11 at the connection between the waterproof housing 3 and the waterproof cover 4.

[0035] The wire 6 is connected to the pressure controller body 1 and extends out of the waterproof cover 4. It is sealed to the waterproof cover 4 through the sealing plug 7. The waterproof cover 4 has a through hole 402. The wire 6 is sealed through the sealing plug 7 and the sealing plug 7 is sealed and snapped into the through hole 402.

[0036] A sealing bushing 8 is fitted onto the connection between the waterproof housing 3 and the connecting rod 2. The bottom of the waterproof housing 3 is provided with a guide port 302. The connecting rod 2 extends out of the bottom of the waterproof housing 3 through the guide port 302. A second sealing ring 9 and a third sealing ring 10 are provided between the sealing bushing 8, the waterproof housing 3 and the connecting rod 2. A second sealing groove 12 is provided at the connection between the sealing bushing 8 and the guide port 302. The second sealing ring 9 is located in the second sealing groove 12 at the connection between the sealing bushing 8 and the guide port 302. A third sealing groove 13 is provided at the connection between the sealing bushing 8 and the connecting rod 2. The third sealing ring 10 is located in the third sealing groove 13 at the connection between the sealing bushing 8 and the connecting rod 2.

[0037] This utility model comprises a waterproof housing 3, a waterproof cover 4, a first sealing ring 5, a sealing plug 7, a sealing bushing 8, a second sealing ring 9, and a third sealing ring 10. The waterproof housing 3 and the waterproof cover 4 seal the pressure controller body 1 internally, and the first sealing ring 5, the sealing plug 7, the sealing bushing 8, the second sealing ring 9, and the third sealing ring 10 provide multi-stage sealing at the connection points of the connecting rod 2, the waterproof housing 3, the waterproof cover 4, and the wire 6, thereby improving the waterproof sealing performance of the pressure controller. It can operate stably in liquid media, avoiding damage or performance degradation of the pressure controller due to liquid intrusion, thus improving the safety and reliability of the pressure controller and reducing potential economic losses and safety risks.

[0038] In this embodiment, as Figure 1 and Figure 6 As shown, a transparent observation window 14 is provided on the waterproof cover 4 at the position corresponding to the display screen of the pressure controller body 1;

[0039] This utility model has a transparent observation window 14 on the waterproof cover 4, which makes it easy for operators to intuitively observe the status and data display of the pressure controller and enhance the monitoring capability of the pressure controller.

[0040] In summary, the method of using the multi-stage sealing-based waterproof pressure controller provided in this embodiment is as follows:

[0041] In use, the pressure controller body 1 is placed inside the waterproof housing 3, and the connecting rod 2 at the bottom of the pressure controller body 1 is inserted into the guide port 302. Then, the second sealing ring 9 and the third sealing ring 10 are placed into the second sealing groove 12 and the third sealing groove 13 in the sealing bushing 8, respectively. Lubricating oil is then applied to the sealing bushing 8. Next, the sealing bushing 8, along with the second sealing ring 9 and the third sealing ring 10, is fitted into the connection between the guide port 302 and the connecting rod 2, so that the second sealing ring 9 and the third sealing ring 10 are respectively engaged in the second sealing groove 12 on the guide port 302 and the third sealing groove 13 on the connecting rod 2. Then, the first sealing ring 5 is placed into the first sealing groove 11 on the waterproof housing 3, and the waterproof cover 4 is screwed onto the waterproof housing 3. Then, the wire 6 is pulled out from the through hole 402 using a tool, and the wire 6 is threaded onto the sealing plug 7. Finally, the sealing plug 7 is sealed and fastened into the through hole 402 to achieve the sealed assembly of the pressure controller.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof pressure controller based on multi-stage sealing, characterized in that, The utility model relates to a pressure controller, including, The bottom of pressure controller body (1) is provided with connecting rod (2), Waterproof shell (3) is arranged on the outside of pressure controller body (1), and connecting rod (2) penetrates the bottom of waterproof shell (3), Waterproof cover (4) is screwed on waterproof shell (3), and first sealing ring (5) is arranged between waterproof shell (3) and waterproof cover (4), Lead wire (6) is connected with pressure controller body (1), and lead wire (6) extends outside waterproof cover (4) and is sealedly connected with waterproof cover (4) through sealing rubber plug (7), Sealing bushing (8) is sleeved at the joint of waterproof shell (3) and connecting rod (2), and second sealing ring (9) and third sealing ring (10) are arranged between sealing bushing (8), waterproof shell (3) and connecting rod (2).

2. A waterproof pressure controller based on multi-stage sealing according to claim 1, characterized in that: The upper end of waterproof shell (3) is provided with internal thread groove (301), and the bottom of waterproof cover (4) is provided with external thread ring (401), and waterproof shell (3) and waterproof cover (4) are screwed through internal thread groove (301) and external thread ring (401).

3. A waterproof pressure controller based on multi-stage sealing according to claim 1, characterized in that: The end face of the joint of waterproof shell (3) and waterproof cover (4) is provided with first sealing groove (11), and first sealing ring (5) is arranged in first sealing groove (11) of the joint of waterproof shell (3) and waterproof cover (4).

4. A waterproof pressure controller based on multi-stage sealing according to claim 1, characterized in that: Waterproof cover (4) is provided with through hole (402), lead wire (6) is sealingly threaded on sealing rubber plug (7), and sealing rubber plug (7) is sealingly clamped in through hole (402).

5. A waterproof pressure controller based on multi-stage sealing according to claim 1, characterized in that: The bottom of waterproof shell (3) is provided with guide port (302), and connecting rod (2) extends out the bottom of waterproof shell (3) through guide port (302).

6. A waterproof pressure controller based on multi-stage sealing according to claim 5, characterized in that: The joint of sealing bushing (8) and guide port (302) is provided with second sealing groove (12), and second sealing ring (9) is arranged in second sealing groove (12) of the joint of sealing bushing (8) and guide port (302).

7. A waterproof pressure controller based on multi-stage sealing according to claim 1, characterized in that: The joint of sealing bushing (8) and connecting rod (2) is provided with third sealing groove (13), and third sealing ring (10) is arranged in third sealing groove (13) of the joint of sealing bushing (8) and connecting rod (2).

8. A waterproof pressure controller based on multi-stage sealing according to claim 1, characterized in that: Transparent observation window (14) is arranged on waterproof cover (4) corresponding the position of display screen of pressure controller body (1).

Images